Commit fffbacc1 authored by Alex Shi's avatar Alex Shi Committed by Linus Torvalds
Browse files

mm/vmscan: remove prefetch_prev_lru_page 

This macro was never used in git history.  So better to remove.

Link: http://lkml.kernel.org/r/1579006500-127143-1-git-send-email-alex.shi@linux.alibaba.com


Signed-off-by: default avatarAlex Shi <alex.shi@linux.alibaba.com>
Reviewed-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Cc: Qian Cai <cai@lca.pw>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 6c9e0907

mm/vmscan.c

+0 −14
Original line number Diff line number Diff line
@@ -146,20 +146,6 @@ struct scan_control { 
	struct reclaim_state reclaim_state;

};



#ifdef ARCH_HAS_PREFETCH

#define prefetch_prev_lru_page(_page, _base, _field)			\

	do {								\

		if ((_page)->lru.prev != _base) {			\

			struct page *prev;				\

									\

			prev = lru_to_page(&(_page->lru));		\

			prefetch(&prev->_field);			\

		}							\

	} while (0)

#else

#define prefetch_prev_lru_page(_page, _base, _field) do { } while (0)

#endif



#ifdef ARCH_HAS_PREFETCHW

#define prefetchw_prev_lru_page(_page, _base, _field)			\

	do {								\